Wall Stabilisation

Wall Stabilisation

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Wall Stabilisation

The problem

Many houses in the UK constructed with cavity walls do not have lintel over the windows in the outer leaf. The brickwork - often referred to as soldier coursing, was supported by the load bearing window frame. Over time, the brickwork loading slumps, and causes the frame to bend and cracks appear in the mortar pointing.

Another common problem to masonry movement in a building is cracking of both the masonry itself and cracks in the mortar bed joints. This can either be horizontal cracking or ‘stepped’ cracking, or a combination of both.

It is important that the cause of the cracking is identified before works commence and you may need the assistance of a qualified person, such as a Structural Engineer.

Lintel Reinforcement

Two ‘Chords’ or beams are created over the window. Supplementary bars ‘pin’ the brick to the beam.

Crack Stitching

Bars are set in the mortar joints, typically every 450mm horizontal centres, and they extend 450mm either side of the crack.


To strengthen the masonry, high grade stainless helical bars are inserted into the bed joints. These act as new beams in the case of lintel reinforcement. Additional helical bars may also be installed vertically up through the soldier coursing to tie the bricks to the newly created beam.

Wall stabilisation can be used to repair:

  • Horizontal cracks
  • Cracks to render coats
  • Bowing walls

Features and benefits:

  • Easily fixed, even in weak materials
  • Invisible when installed
  • Very cost effective, saves having to install traditional lintels
  • Versatile applications, designed for the job
  • Cementitious based and therefore sympathetic to the original structure

The process:

  • A 65mm deep chase is made into the mortar joint to remove the bed joint
  • After the chase has been cleaned out, a bead of grout or two-part epoxy resin is inserted
  • Helical stainless steel bars are then cut to the precise length of the cut - to provide strength to the joint.
  • The bars are then set into the chase and pushed into the grout. A second bead of grout is then applied.